Is 500 lumens bright enough for cycling?

I'm considering purchasing a headlight for cycling, and I've come across one that offers 500 lumens of brightness. However, I'm not sure if that's sufficient for nighttime riding. Can you tell me if 500 lumens is bright enough to ensure my safety and visibility to other road users while cycling? Additionally, are there any other factors I should consider when selecting a cycling headlight besides brightness, such as beam pattern or battery life?